Lonsdale, Adelaide
Engine block boring, honing and machining
Cylinder block machining at our workshop in Lonsdale, in Adelaide's southern suburbs. The block is the foundation of the engine, and all of this work is done in house.
The process
What’s involved.
From a rebore and hone to suit new pistons, to facing, line boring or fitting a sleeve, here is what we do and what is involved.
- Step 01
Clean
Blocks can be acid cleaned to strip scale, rust and grime from the water jackets and oil galleries.
- Step 02
Test
The block is crack tested and pressure tested, and the cylinder walls can be sonic tested to measure their thickness before boring.
- Step 03
Bore and hone
Worn cylinders are bored oversize to suit new pistons, then power honed to give the rings a surface to bed in against.
- Step 04
Face and line bore
The deck can be faced flat for the head gasket, and the main bearing tunnel line bored back into alignment.
- Step 05
Sleeve
A damaged cylinder can sometimes be repaired by fitting a sleeve, depending on the block.
What we do
Done in house.
Every job is different, so we quote after inspecting the part. Call (08) 8382 3388 or send photos through the quote form.
- BoringMachining worn cylinders oversize so they are round and straight again, ready for new pistons.
- Power honingFinishing the bore walls with the right crosshatch so new rings bed in and seal.
- Block facingMachining the deck flat so the head gasket clamps and seals evenly.
- Line boringBringing the main bearing tunnel back into alignment for the crankshaft.
- Sleeves fittedFitting new cylinder sleeves to save a block with a damaged cylinder.
- Crack testingChecking the block for cracks before any machining starts.
- Pressure testingPressurising the water passages to find leaks.
- Sonic testingMeasuring cylinder wall thickness ultrasonically to confirm a block can be safely bored.
- Acid cleaningChemically stripping scale, rust and grime from the water jackets and oil galleries.
Why sonic test a block before boring?
Sonic testing measures cylinder wall thickness. It helps confirm there is enough material to bore the cylinders oversize.
Can a block with a damaged cylinder be saved?
Sometimes. Fitting a sleeve is one way to repair a damaged cylinder. Whether it suits your block depends on inspection.
Can I bring in just the block?
Yes. Use the quote form and choose 'Just the part', or call (08) 8382 3388.
How much does block machining cost?
Every job is different, so we quote after inspecting the part. Call (08) 8382 3388 or send photos through the quote form.
More services
More services.
-
01
Engine reconditioning
Block, head, crank, rods and pistons, machined in house and brought back to a healthy, reliable engine.
Read more -
02
Cylinder head reconditioning
Valve grinds, facing, pressure and crack testing, guides, welding, straightening and thread repairs.
Read more -
03
Crankshaft grinding
Crankshaft grinding and crack testing, with con rod pin fitting and fitting pistons.
Read more -
04
LPG cylinder head overhauls
Cylinder heads overhauled to suit running on LPG.
Read more -
05
Engine builds and installations
Engines built to suit and fitted, including our Holden 355 Stroker engines.
Read more
Get in touch
Ready for a quote?
Tell us about the car and the engine, and add a few photos if you can. We will come back to you with honest advice and a quote.